Duplex tube.



PATENTED APR. 28, 1908.

H. EMERSON. DUPLEX TUBE. APPLICATION FILED JUNE'BQ, 1907.

avwanlfoz Homer k erscw I chusetts',

HOMER EMERSON, OF MILTON, MASSACHUSETTS.

DUPLEX TUBE.

Specification of Letters Patent.

Patented April 28, 1908.

;, Application filed June 29, 1907. Serial no. 881,428.

To all whom it may concern:

Be it known that I, HOMER EMERSON, citizen of the United States,residing at Milton, 1n the county of Norfolk and State of Massahaveinvented certain new and useful Improvements .in. Duplex Tubes, of whichthe following is a specification.

This invention rovides means for linking -\a series of tubes 0 thecollapsible type so as to form in effect a single compartment packagekey any tube of the series may be obtained by simply removing the capthereof'in' the "acand the merits thereof an customed way. For a fullunderstanding of'the invention also to acquire a knowledge of thedetails of construction and the means for efiecting the result,reference is'to ,belhad to the following description and accom anyingdrawings.

be adapted to difierent forms and conditions by changes in the structureand minor details without de- PaItID from the spirit or essentialfeatures thereo still the preferred embodiment is vshowniiitheaccompanying drawings, in

whichz- Flgure 1 is a perspective view of a series of colla sible tubesconnected by means emodymg the invention. Fig. Zisa side view, endportions of the tubes being broken away and in section to show moreclearly the relation of the coupling or connecting means. Fig. 3 1s adetail perspect've view of the yoke.

.Fig. 4is a detail pers ectiveview of the key.

Corresponding an like artsare referred to in the following descriptionand indicated in all the views of the drawings by the same referencecharacters;

It 1s assumed that the tubes contain a preparation a like amount ofwhich is used I 1 ferent preparations of om, eachso that compressionresulting from operatlng the key may expel the contents from the tubeswhen the caps thereof are re-. moved. The tubes may contain like or.di acharacter to be positively expelled by subjecting the tubes to internalpressure by collapsing from one end. The collapsible tubes 1 areconnected at one endby means f a yoke 2 and at the opposite end by meansf key 3 which also serves to roll the ends of'the tube so as to subjectthe contents thereof to presthe several tubes being collapsed by acommon to all so that the contents of moved and the same sure tendin toexpel said contents upon removal of t e caps of the tubes.

The collapsible tubes 1 are of ordinary construction such as employedfor holding paste, printers inks,' paints, salves and the like, andprovidedat one end with a threaded extension 4 to which a screw ca 5 isfitted,

rolled or otherwise compressed to positively expel the contents from thetube.

The yoke 2 is formed with openings 6 which receive the threadedextensions 4 of the collapsible tubes, said threaded extensions beingscrewed into the opening 6,

, whereby positive connection between the yoke and tubes is assured. Theyoke is indented at 7 to conform to. the space formed between adjacentportions of the shoulders or ends of the tubes at the base of thethreaded extensions 4, thereby preventin interference with 'the caps orwith sai threaded extensions.

The key 3 is formed with a slot 8 through which the bottom ends of thetubes 1, after being flattened, are passed, said key being turned toeffect an initial winding of the flattened ends of the tubes about thesame, this being indicated mdst clearly in Figs." 1 and 2.

It is to be understood that any number of collapsible tubes may beconnected in series by extending the yoke 2 and bringing the flattenedends of the tubes together and passing them through the slot 8 ofthekey. As shown in the drawings, only two tubes are connected inseries,

le tubular package. After the tubes have been collapsed, the yoke andkeyma be reused in connection wit other tubes as wili be readilyunderstood.

The invention .assures having ready at hand tubes containing cooperatingpreparations, as for instance a cleaning1 pre aration in one-and apolishin compoun mt e other, thereby admitting o cleaning a series ofart1- cles preliminary to polishing the same.

Having'thus describedthe invention, what is claimed as new is:

1. A multiple tubular package, comprising a series of collapsible tubes,each having a threaded extension at one end and a flattened portion atthe opposite end, a yoke having 0 enings to receive the threadedextensions of the tubes, and a key receiving the flattoned ends of saidtubes.

the opposite end of the tube a apted to be v 2: A'ninltiple tubularackage comprising ed to fit close to the ends of the tubes bea series ofcollapsible tu es, each having a tween the threaded extensions thereof.10 threaded-extension at one end and a flattened In testimony whereof Iaflix my signature terminal at the'opposite end, a key connectinpresence of two witnesses.

5 ing the flattened ends of the tubes and adapt- HOMER EMERSON. I [L.s.] ed to collapse the same, and a yoke havin Witnesses: o enings inwhich the threaded extensions 0 ALIoE B. F. GAsKms,

- 't e tube are screwed, said yolge being intend- I 'HELEN M.- Forums.

